Overworlds and Underworlds: The Quay brothers take over Leeds - video

Rooted in mythology, the Quay brothers' art draws connections between ancient cities and the modern metropolis. For Overworlds and Underworlds, a city-wide project for the Cultural Olympiad, they hope to transform Leeds into a walking wonderland. Here, Leeds Canvas organisers discuss the event, which runs from 18 to 20 May